Show:
Functioning Functions
Linear? What's that mean?
OH NO IT'S NOT LINEAR
Geometry is cool.
What's the percent probability your proportions are statistical?
100
During a sale at a shoe store, all shoes were 25% off the original price. Which statement best describes the functional relatoinship between the sale price of a pair of shoes and the original price?

A. The sale price is dependent on the original price.

B. The original price is dependent on the sale price.

C. The sale price and the original price are independent of each other.

D. The sale price is dependent on the number of pairs of shoes purchased.
A. The sale price is dependent on the original price.
100
A restaurant sold a total of 418 large and small hamburgers during one day. Total hamburger sales were $1077. Large hamburgers sold for $3 and small hamburgers sold for $1.50. What is the system of linear equations that can be used to find L, the number of large hamburgers sold, and S, the number of small hamburgers sold?
L + S = 418 3L + 1.50S = 1077
100
If the graph of

y = 19x^2 + 31

is translated up 15 units, what is the equation that will best describe the resulting graph?
y = 19x^2 + 46
100
SEE CARD 22
H. A = (0.5)x^2 - pi(y^2)
100
SEE CARD 1
D
200
The function below shows a relationship between x and y.

y = 7x + 3

If the value of x increases by 1, what happens to the value of y?
The value of y increases by 7
200
Ms. Rodriguez plans to order from 20 to 26 books for her class. The prices of the books she plans to order range from $4.95 to $12.95 each. If the publisher charges a shipping fee of $0.50 per book ordered, which of the following is not a reasonable price for the books, including shipping?

A. $145
B. $245
C. $345
D. $445
D. $445
200
Barbara graphs a family of equations of the form

y = Ax^2 + 1.

How does each new graph compare to the previous graph as Barbara increases the value of A from 0.5 to 1 to 1.5 and finally to 2?
Each new graph is narrower than the previous graph
200
SEE CARD 30
H.
200
A total of 1755 customers at an electronics store were asked to identify which item they planned to purchase in the next month. The data below shows the results of the survey.

Video camera -- 598 customers
DVD player -- 264 customers
Television -- 325 customers
Desktop computer -- 312 customers
Laptop computer -- 256 customers

According to the information above, which of the following statements is true?

A. About (3/20) of the customers planned to purchase a DVD player.

B. About (1/19) of the customers planned to purchase a television.

C. About (2/3) of the customers planned to purchase a laptop computer.

D. More than (1/2) of the customers planned to purchase either a computer or a DVD player.
A. About (3/20) of the customers planned to purchase a DVD player
300
Simplify the following expression: -5x(2x + 7y) + 7xy - 4x(y + 3)
-10x^2 - 32xy - 12x
300
What is the slope of the linear equation 101x + 53y = 12?
-101/53
300
SEE CARD 58
J. Between 1 deg C and 7 deg C
300
SEE CARD 8
H. 30cm^3
300
SEE CARD 32
F (1/60)
400
During the second week of summer vacation, Reuben practiced his guitar for 10 minutes less than twice the amount of time he practiced the first week. If he praticed m minutes the first week, what is the expression that represents the number of minutes that Reuben practiced during the second week?
2m - 10
400
Denise can assemble a chair in 0.75 hour and a table in 0.4 hour. Which inequality best represents the number of chairs, C, and the number of tables, T, that Denise can assemble in one day if she works a maximum of 8 hours.

A. (0.75 + 0.4)(C + T) <= 8

B. 0.75C + 0.4T >= 8

C. 0.75C + 0.4T <= 8

D (0.75 + C) + (0.4 + T) >= 8
C. 0.75C + 0.4T <= 8
400
What is the solution set for the equation

2x^2 - 16x - 96 = 0?

A. {4,12}
B. {-4,12}
C. {-4,-12}
D. {4,-12}
{-4, 12}
400
SEE CARD 36
H
400
Nisha can solve a set of 5 math problems in 12 minutes. At this rate, how long will it take her to solve 20 sets of 7 math problems?
5 hours 36 minutes
500
The height in centimeters, h(x), of a human female of European ancestry can be estimated by multiplying the length of the tibia in centimeters, x, by 2.90 and then adding 61.53 to the product. What function best represents this relationship?
h(x) = 2.90x + 61.53
500
A city bus collected $780 in fares on one day. The price of a regular fare was $0.80, and the price of a discount fare was $0.40. If a total of 1200 people paid the fares on this bus, how many people paid the regular fare?
750 people
500
The length of a rectangle is 4(r^2)(s^5)(t^3) units, and the rectangle's area is 20(r^5)(s^7)(t^4) square units. If none of r, s, or t = 0, what is the width of the rectangle?
5(r^3)(s^2)t
500
SEE CARD 50
H
500
Francis, Leon, and Shelby are running for president of their school's student council. A random survey of 60 students was taken to determine whom they planned to vote for in the election. The results are as follows:

Francis -- 29 Students
Leon -- 22 Students
Shelby - 9 Students


Based on the data above, what is the best prediction of the number of students who will vote for Leon if 2500 student vote?
916 or 917